The Study of Optical and Electrical Properties of Nanostructured Silicon Carbide Thin Films Grown by Pulsed-Laser Deposition

Keywords: Nanostructure, Pulsed laser deposition, Silicon carbide, Thin film


In this paper, nanostructured silicon carbide (SiC) thin films are deposited onto glass substrate using pulsed laser deposition technique. Electrical and optical characterizations such as conductivity, resistivity, transmission, Seeback effect, absorption, absorption coefficient, energy band gap, and extinction coefficient as a function of photon energy, and the effect of thin films thickness on transmission are carried out to characterize the prepared samples. Results showed that the prepared SiC thin film is an n-type semiconductor with an indirect bandgap of ~3 eV, 448 nm cutoff wavelength, 3.4395 × 104 cm−1 absorption coefficient and 0.154 extinction coefficient. The surface morphology of the SiC thin films is studied using scanning electron microscope at a substrate temperature of 400 °C and it is found that the grain size of the prepared SiC thin film is about 30 nm. As such, the nano thin films optical and structural characteristics enable the films to be used as gases sensors in many optoelectronic devices such as the environment and ultraviolet photodiode.


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Author Biographies

Muhanad A. Ahmed, Department of Physics, Faculty of Science and Health, Koya University, Koya KOY45, Kurdistan Region - F.R. Iraq

Muhanad A. Ahmed is a Professor at the Department of Electrical Techniques, Institute of Technology, Middle Technical University. He got the B.Sc. and the M.Sc. degrees in Physics. His research interests are in Nano Materials, Laser and Solar Cells.

Mohammed F. Mohammed Sabri, Department of Physics, Faculty of Science and Health, Koya University, Koya KOY45, Kurdistan Region - F.R. Iraq

Mohammed F. Mohammed Sabri is an Assistant Prof. at the Department of Physics, Faculty of Science and Health, Koya University. He got the B.Sc. degree in Materials Science, the M.Sc. degree in Applied Physics and the Ph.D. degree in Nano Materials. His research interests are in Nano Materials, Electron Microscopy, Glass and Amorphous Materials and Nano-Particle’s preparation. Dr. Mohammed is a member of Nano LAB at Department of Materials Science and Engineering, Sheffield University, United Kingdom.

Wathiq R. Abed, Department of Physics, Faculty of Science and Health, Koya University, Koya KOY45, Kurdistan Region - F.R. Iraq

Wathiq R. Abed is a Lecturer at the Department of Electrical Techniques, Institute of Technology, Middle Technical University. He got the B.Sc. degree in Electrical Engineering, the M.Sc. degree in Electrical Engineering and the Ph.D. degree in Electrical and Electronics Engineering. His research interests are in Electrical Power System and Aircraft Electrical Power System. Dr. Wathiq is a member of Higher Education Academy (HEA).


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How to Cite
Muhanad A. Ahmed, Mohammed Sabri, M. F. and Abed, W. R. (2021) “The Study of Optical and Electrical Properties of Nanostructured Silicon Carbide Thin Films Grown by Pulsed-Laser Deposition”, ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY, 9(2), pp. 46-50. doi: 10.14500/aro.10852.